5-day weather forecast Niagara Falls 21-03-2026

Weather forecast Niagara Falls Saturday 21 March 21.03.2026: overcast, temperature from 1 °C to 5 °C.

Precipitation probability 100%. Wind up to 4 m/s (gusts 6.14 m/s). Air humidity 76–97%, atmospheric pressure 758–764 mm Hg, UV index up to 2.

Sunrise 07:26
Sunset 19:25

Chart

Table

Type of temperature:

°C

°F

← Fri, 20 Mar

Sat, 21 Mar, 2026

Forecast from 1 °C to 5 °C and precipitation

Temperature & Precipitation
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Temperature (°C)	2	2	2	1	1	1	1	1	1	1	2	2	3	4	4	5	5	5	5	4	4	4	4	4
Precipitation (mm/hr)	0.12	0.05	0.16	0.05	0.02	0.12	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.01	0	0.05	0.16

Cloud cover

Cloud cover
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Cloud cover (%)	100	100	100	100	100	100	94	92	83	87	86	93	100	89	97	100	98	78	82	53	100	67	100	100

Wind speed and direction

Wind & Wind gust
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Wind (m/s)	2.39	2.69	3.61	4	4	3.89	2.81	2.61	1.81	2.5	2.81	2.19	1.81	0.81	0.69	1.81	1.31	0.89	1.69	1.5	0.89	1	0.69	1.61
Wind gust (m/s)	4.08	4.53	5.75	6.14	6.03	5.78	4.14	3.86	2.64	3.53	3.86	2.94	2.33	1	0.86	2.33	1.69	1.22	2.53	2.53	1.58	1.81	1.25	2.89

Air humidity

Humidity
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Humidity (%)	95	95	95	96	96	97	96	95	95	93	91	88	84	81	77	76	77	78	81	84	87	88	89	90

Atmospheric pressure

Pressure
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Pressure (mm Hg)	760	760	761	761	761	761	761	762	761	763	763	764	764	763	762	761	761	761	760	759	759	759	759	758

Ultraviolet index

UV Index
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
UV Index	0	0	0	0	0	0	0	0	0.2	1	1	1	1	1	1	2	2	1	1	2	0	0	0	0

← Fri, 20 Mar

Sat, 21 Mar, 2026

Data Sources & Methodology

Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.

Learn more about our methodology →